what 2 perfect squares would you use to approximate radical symbol 15?
radical symbol 4 and radical symbol 25, radical symbol 16 and radical symbol 25, radical symbol 9 and radical symbol 16, or radical symbol 9 and radical symbol 25.
radical symbol 4 and radical symbol 25, radical symbol 16 and radical symbol 25, radical symbol 9 and radical symbol 16, or radical symbol 9 and radical symbol 25.